Interobserver variation of single-photon emission computed tomography bone scans in patients evaluated for unilateral condylar hyperactivity.
Oral Surg Oral Med Oral Pathol Oral Radiol
; 115(3): 399-405, 2013 Mar.
Article
em En
| MEDLINE
| ID: mdl-23453031
ABSTRACT
OBJECTIVE:
This study assessed the quantitative evaluation of the region of interest (ROI) by mean and maximum pixel counts of single-photon emission computed tomography (SPECT) scans in patients with clinical suspicion of unilateral condylar hyperactivity (UCH); the interobserver reliability and the correlation of condylar activity with patient age was determined.METHODS:
Two independent observers analyzed 67 bone SPECT scans. Maximum and mean activity values within an ROI on the mandibular condyle were analyzed; a cutoff value of 55% was used to determine the qualitative outcome.RESULTS:
Excellent interobserver agreement was seen for both maximum (kappa 1.0) and mean activity analysis (kappa 0.94). Maximum and mean condylar activities were strongly correlated (r > 0.98). Maximum and mean condylar activity of the normal condyle decreased significantly with increasing age.CONCLUSIONS:
Maximum and mean condylar activity levels were highly correlated in patients with mandibular asymmetry. An excellent interobserver agreement was found with either maximum or mean condylar activity.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tomografia Computadorizada de Emissão de Fóton Único
/
Côndilo Mandibular
Tipo de estudo:
Qualitative_research
Limite:
Adolescent
/
Adult
/
Child
/
Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article